Vocabulary Builder

Vocabulary Builder

    Improve Your Writing

  • Boost your vocabulary
  • See words in the context of real sentences
  • Learn by association and by definition
  • Master a new lexicon!

Get Started Below

Vocabulary Word

Word: molecule

Definition: the smallest particle (one or more atoms) of a substance that has all the properties of that substance


Sentences Containing 'molecule'

Common sense tells us that a molecule of water is not the same as a molecule of vinegar; the molecules of each are extremely small and in rapid motion, but they differ essentially, otherwise one substance would be like every other substance.
What is it that makes a molecule of water differ from a molecule of vinegar, and each differ from all other molecules?
For example, the molecule of water has two different atoms, the oxygen atom and the hydrogen atoms; alcohol has three different kinds of atoms, oxygen, hydrogen, and carbon.
When the atoms comprising a molecule are all alike, the substance is called an element, and is said to be a simple substance.
Two atoms of the element hydrogen unite with one atom of the element oxygen to make one molecule of water.
A group of symbols, such as this, expressing a molecule of a compound is called a formula.
But to come to a stop involved the jamming of myself, molecule by molecule, into whatever lay in my way; meant bringing my atoms into such intimate contact with those of the obstacle that a profound chemical reaction--possibly a far-reaching explosion--would result, and blow myself and my apparatus out of all possible dimensions--into the Unknown.

More Vocab Words

::: redolent - odorous; fragrant; suggestive (of an odor); Ex. redolent of onions/mystery
::: tawdry - cheap and gaudy; Ex. tawdry jewelry
::: humus - substance or rich soil formed by decaying vegetable matter; CF. soil
::: exuberance - overflowing abundance; joyful enthusiasm; flamboyance; lavishness; ADJ. exuberant: high-spirited and lively; growing abundantly and strongly
::: unaccountable - unexplicable; impossible to account for; unreasonable or mysterious
::: slipshod - slovenly; careless; sloppy; untidy; shabby; Ex. slipshod work
::: relegate - put into a lower or worse place; banish to an inferior position; delegate; assign; Ex. relegate the old furniture to the children's room; Ex. relegated to the second division
::: illicit - illegal
::: fresco - painting on wet plaster (usually fresh)
::: dwindle - shrink; reduce gradually